<!--
 * @Author: error: error: git config user.name & please set dead value or install git && error: git config user.email & please set dead value or install git & please set dead value or install git
 * @Date: 2023-03-17 18:47:55
 * @LastEditors: error: error: git config user.name & please set dead value or install git && error: git config user.email & please set dead value or install git & please set dead value or install git
 * @LastEditTime: 2023-03-17 22:08:33
 * @FilePath: \从0到1的楷楷\从0到1的楷楷\pink系列\Javasritp\第二天\js\14-简单计算器.html
 * @Description: 这是默认设置,请设置`customMade`, 打开koroFileHeader查看配置 进行设置: https://github.com/OBKoro1/koro1FileHeader/wiki/%E9%85%8D%E7%BD%AE
-->
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        // 1.用户输入  2个数字 +  操作符号  + - *  / 
        let num1 = +prompt('请您输入第一个数字:')
        let num2 = +prompt('请您输入第二个数字:')
        let sp = prompt('请您输入 + - * / 其中一个:')
        // 2. 判断输出
        switch (sp) {
            case '+':
                alert(`结果为"${num1+num2}`)
                break
            case '-':
                alert(`结果为${num1-num2}`)
                break
            case '*':
                alert(`结果为${num1*num2}`)
                break
            case '/':
                alert(`结果为${num1/num2}`)
                break

        }
    </script>
</body>

</html>